Fleeting Expertise

Polarity: Naramon
Rarity: Rare
Drain: 6 → 11
Fits: WARFRAME

(Stats)

+60% Ability Efficiency
-60% Ability Duration

Curated and corroborated — the export and the wiki independently state the same effect.

Drain by rank

R0 6
R1 7
R2 8
R3 9
R4 10
R5 11

A matching polarity halves the drain, rounded up; a mismatched one costs more than no polarity at all.

(Acquisition)

Fleeting Expertise drops in 1 place. The best odds are 4.35% at Derelict Vault.

Void relics 1

Where	Rotation	Chance
Derelict Vault	—	4.35%

Chances are per reward roll. Where a mission appears in more than one reward table, the best figure is the one shown.

(Information)

Introduced: 10.3
Max rank: 5
Tradable: Yes
Transmutable: No
Exilus slot: No

(Sources)

Polarity, drain, rarity, compatibility and the card art come from the game export (snapshot 19 Sept 2026). Introduction version, tradability, mod sets and the drop tables come from the WARFRAME Wiki , CC BY-SA. Whether an effect is curated is our own judgement, recorded per mod.